Equipment for recording and playback of bat echolocation and communication calls

Passive Monitoring / Bat Recorders

Passive bat monitoring systems (based on the Avisoft UltraSoundGate technology and the RECORDER USGH software) are now manufactured and distributed by our cooperation partner bat bioacoustictechnology GmbH.

The following components for special applications are still available from Avisoft Bioacoustics:

#40040 Low-cost bat monitoring system with phantom-powered electret microphone

#54163 Avisoft-UltraSoundGate 416Hnbm
#64163 (64164) Avisoft-UltraSoundGate 416Hb

#40001 Electret Ultrasound Microphone Knowles FG
#40007 Electret Ultrasound Microphone Knowles FG-O
#40011 Condenser ultrasound microphone Avisoft-Bioacoustics CM16/CMPA (not compatible with 416Hnbm)

#10101 (10102) Analysis software Avisoft-SASLab Pro

All recording system variants include the Avisoft-RECORDER software that comes with a Bat Call Trigger Filter, which can prevent triggering on unwanted broad-band noise such as wind, rain or insect stridulations. In contrast to a few other brands claiming such functionalities, the Avisoft Bioacoustics solution to this problem just works efficiently under real-world conditions!

Active Monitoring / Mobile Monitoring / Line Transect Surveys / Advanced Bat Detectors

#31172 Avisoft-UltraSoundGate 116Hn kit with CM16/CMPA condenser microphone or
#71165 (71166) Avisoft-UltraSoundGate 116Hme kit with CM16/CMPA condenser microphone or
#51165 (51166) Avisoft-UltraSoundGate 116Hm kit with CM16/CMPA condenser microphone
#10101 (10102) Analysis software Avisoft-SASLab Pro


#51165 (51166) Avisoft-UltraSoundGate 116Hm kit with condenser microphone or
#64163 (64164) Avisoft-UltraSoundGate 416Hb or
#34163 (34164) Avisoft-UltraSoundGate 416H or
#34171 (34172) Avisoft-UltraSoundGate 816H or
#34175 (34174) Avisoft-UltraSoundGate 1216H and
#40011 Condenser ultrasound microphone Avisoft-Bioacoustics CM16/CMPA or
#40001 Electret Ultrasound Microphone FG or
#40007 Electret Ultrasound Microphone Knowles FG-O

for absolute sound level measurements:

1/4″ measurement microphone (G.R.A.S. 40BF + 26AC/AL) or
1/8″ measurement microphone (G.R.A.S. 46DP-1 1/8″ + AA0091) or
1/8″ measurement microphone (G.R.A.S. 40DP + GR0010 + 26AC) and
#40017 1/4″ Mic Power Module and
sound calibrator (G.R.A.S. Type 42AB or 42AG)

Discrete gain control potentiometers (part# 31165) are optionally available for well-defined gain settings in absolute sound level measurements.

#10101 (10102) Analysis software Avisoft-SASLab Pro


Acoustic bat lure for mist netting or attracting bats into new bat houses

#70113 USG Player BL Light or
#70116 USG Player BL Pro 2

Playback experiments

#60108 Speaker Vifa and
#70111 (70112) UltraSoundGate Player 116 (single channel) or
#70117 (70118) UltraSoundGate Player 216H (2 channels)
#70125 (70126) UltraSoundGate Player 416H (4 channels)

What the experts say

“It’s widely recognized in the bioacoustics community that Avisoft Bioacoustics designs the best commercial systems for recording, digitizing, and analyzing the biosonar and social calls of bats. Brock Fenton’s lab at University Of Western Ontario has worked with, and tested, the major commercially-available bat recording systems. In acoustic monitoring, Avisoft systems outperform others, recording 7-60% more free-flying bat calls than other systems (Batlogger, AnaBat, Batcorder and Song Meter)*. For behavioral research use, I have found that Avisoft recording and playback systems are the most powerful and user-friendly. I have tested bioacoustic equipment from several companies, but I always come back to Avisoft because of the time-tested reliability, durability, ease of use, and the state of the art capabilities. One of the biggest advantages is the superb customer service. Over the last few years, I’ve sent Raimund Specht dozens of email questions and inquiries. He has always been very patient, courteous, helpful, and fast to respond. This is clearly a company that sets the highest standards of quality and customer support.”

–Gerry Carter, University of Maryland

* Adams, A. M., Jantzen, M. K., Hamilton, R. M., & Fenton, M. B. (2012). Do you hear what I hear? Implications of detector selection for acoustic monitoring of bats. Methods in Ecology and Evolution, 3(6), 992-998.